S1Digital is releasing the P500, part of their ProLine Series, with the custom installer market in mind. It's designed for whole-house entertainment, and includes the Xonar HDAV1.3 sound and video card from Asus. The card can output lossless Blu-Ray audio, a feat which is rarely handled properly. Most PCs must downsample audio from Blu-Rays because they lack the proper certifications.